Answer
After his return to WWE in 2006, Charlie Haas's tag team partner was Shelton Benjamin. Haas and Benjamin had previously teamed together in WWE between 2002 and 2004, and they were reunited in 2006 as part of the Raw brand. The team was successful, winning the WWE Tag Team Championship on two occasions. However, they eventually disbanded in 2008, and Haas and Benjamin went on to pursue separate singles careers.